Finding the Fourth Proportional to 1,105.41, 1,525.55 and 608.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.41 : 1,525.55 = 608.07 : x
2. Step 2: Convert to fraction form
   1,105.41/1,525.55 = 608.07/x
3. Step 3: Cross multiply
   1,105.41x = 1,525.55 × 608.07
4. Step 4: Simplify right side
   1,105.41x = 927,638.15
5. Step 5: Solve for x
   x = 927,638.15/1,105.41
6. Step 6: Final answer
   x = 839.18